How can you find out the number vertices of a mask?

A. select the mask in the timeline and look in the Info panel

B. select the mask in the timeline, open the Mask properties and look under Mask Path

C. select the mask in the Composition panel, right-click on it, select Mask and select Vertices at the bottom of the menu

D. select the mask in the Composition panel, go to Layer > Mask > Mask Shape to bring up the Mask Shape dialog box containing the vertices information

You are working on a greenscreen layer that will use the Keylight effect to create a transparent background behind an actor. During the shot, a boom microphone is visible at t he top of the frame above the actor. What should you do to remove the microphone?

A. create a garbage matte to hide the microphone

B. scale the layer so the microphone is no longer visible

C. use a second copy of the Keylight effect to key out the micropho ne

D. position the clip in the composition window so the microphone is not visible

When working with a complex After Effects composition you are using the Render Multiple Frames Simultaneously feature. After Effects posts an "Incompatible Preview mode. Multiprocessing is off." message in the Info panel and temporarily disables the Re nder Multiple Frames Simultaneously feature. Which After Effects feature or setting causes this message to appear in the Info panel?

A. OpenGL previews are enabled.

B. The Disk Cache feature is enabled.

C. Live Update is disabled in the Timeline panel.

D. The Segment Movie Files At setting is to high.

E. Hardware Accelerate Composition, Layer and Footage Panels is not enabled.

What is a null object?

A. a layer with no animated attributes

B. a layer not visible in the current frame

C. a layer with no effects or presets applied

D. a layer that is invisible and used to parent o ther layers

You have enabled Color Management for an After Effects project. Which action keeps colors within broadcast -safe limits when rendering a compos ition?

A. View > Use Display Color Management command

B. Project Settings > Color Settings > enable Linearize Working Space

C. Output Module Setting > Color Management > enable Preserve RGB

D. Project Settings > Color Settings > enable SDTV NTSC for the Wo rking Space

E. Output Module Settings > Color Management > Output Profile > enable SDTV NTSC 16